IfElseIfExample.java

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package com.mycompany.firstjavaprg;

import java.util.Scanner;

/**
 *
 * @author my
 */
public class IfElseIfExample {
    public static void main(String[] args) { 
        System.out.println("enter marks got by student");
    Scanner sc=new Scanner(System.in);
    int marks = sc.nextInt();
      
    if(marks<50){  
        System.out.println("fail");  
    }  
    else if(marks>=50 && marks<60){  
        System.out.println("D grade");  
    }  
    else if(marks>=60 && marks<70){  
        System.out.println("C grade");  
    }  
    else if(marks>=70 && marks<80){  
        System.out.println("B grade");  
    }  
    else if(marks>=80 && marks<90){  
        System.out.println("A grade");  
    }else if(marks>=90 && marks<100){  
        System.out.println("A+ grade");  
    }else{  
        System.out.println("Invalid!");  
    }  
}  
    
}